"Bellinger, David. C" <David.Bellinger@childrens.harvard.edu> 

02/13/2008 03:23 PM

	

To

Jee-Young Kim/RTP/USEPA/US@EPA

cc

Subject

RE: Request for additional information on Bellinger and Needleman (2003)









Dear Young,

The mean blood lead level at age 24 months, among children whose blood
lead level between birth and 2 years never went above 10 was 1.34,
expressed on the natural log scale (SD 0.63).  The range was 0-2.24.
Exponentiating that gives about 3.8 micrograms/dL (range 1-9.3).

Best Wishes,

David

************************************************

David C. Bellinger, Ph.D., M.Sc.

Professor of Neurology

Harvard Medical School

Professor in the Department of Environmental Health

Harvard School of Public Health

(617) 355-6565

(617) 730-0618 (fax)

(617) 355-7243, #2188 (page)

-----Original Message-----

From: Kim.Jee-Young@epamail.epa.gov
[mailto:Kim.Jee-Young@epamail.epa.gov]

Sent: Wed 2/13/2008 3:02 PM

To: Bellinger, David. C

Subject: Request for additional information on Bellinger and Needleman
(2003)

 

Dear Dr. Bellinger,

Thank you for following-up with Dr. Tellez-Rojo on our request for

additional information on her Mexico City cohort.   At this time, we

would also like to request some additional data from your reanalyses

(Bellinger and Needleman, 2003) of the Boston cohort data.  Would you

please provide us with the mean (SD) blood lead concentrations for the

children in the subset <10 ug/dL?

As you are aware, the Pb NAAQS review is on a very tight court-ordered

deadline.  We would greatly appreciate your prompt response.

Many thanks,

Young

Jee Young Kim, Sc.D.

U.S. Environmental Protection Agency

National Center for Environmental Assessment

Telephone:  919-541-4157

E-mail:  kim.jee-young@epa.gov

